Electronic keyboard instrument



FIG. 1 is a front perspective view of the electronic keyboard instrument according to the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is an end view thereof;

FIG. 6 is another end view thereof; opposite the end shown in FIG. 5; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a electronic keyboard instrument, as shown and described. 